![]() The balance of the ship must be resolved when operating under the water, ensuring enough oxygen for the combat crew, determining the right direction when moving, detecting the target, determining the exact location and bearing mines attached to targets, mine timetables exploded and secretly and safely retreated before mines exploded. Next, the ship must dive, float and swim underground. The first is how to build thick, tight steel hulls, withstand high pressure. In fact, when it comes to designing and manufacturing, there are many more complicated and difficult problems.Īt that time, when science and technology technology had not developed, the construction of submarines met a series of great troubles. The first submarine was egg-shaped and there was only one operator.(Photo: startribune) The ship could go under the water, secretly carrying landmines and sinking the great ships of the British Navy, freeing the city. Right at the most difficult times, maritime engineer David Busnell - an outstanding student who just graduated from Ielsk University has come up with the idea of building a special ship. The supply and trade with outside of New York port at that time was difficult, and it became even more difficult. ![]() These ships or boats were either sunk or captured by British forces. In the late, dark nights, the Americans secretly used some small ships and motorboats across the sea but failed. ![]() Several times, Americans sought to break the siege. All the way in and out of the port were sealed by British warships. In the summer of 1775, the British Navy blocked New York Bay very tightly. The first combat submarine in the world was born in the United States in the XVIII century, during which time it was occupied by British forces. So far, its history, attached to the New York siege, has just been published. Handshouse is preparing a traveling museum exhibit featuring its Turtle replica, and copies of letters, drawings, models, and other documents relating to David Bushnell’s creation.Looking at the current generations of nuclear submarines, few people know that the construction of the first submarine has encountered many difficulties and obstacles. Handshouse Studio is a non-profit educational organization dedicated to creating adventurous hands-on projects to explore history, understand science, and perpetuate the arts. Not long after the final tests conducted in Duxbury, the Discovery Channel, England’s Channel Four, and France’s Channel Five aired the one-hour documentary film, First Submarine as part of the Machines Lost in Time series chronicling the submarine’s reconstruction and its origins in the American Revolution. All of these projects have been executed using only period-correct tools and techniques. They worked on the raising of an ancient Egyptian obelisk, recreated two large 18th-century construction cranes, and participated in creating a full-scale working medieval catapult. The Brown’s have been involved in other, similar history projects. Once in the harbor, operator Rick Brown conducted a series of exercises to simluate how the Turtle actually operated under real-world conditions using its propeller and rudder system. During the reenactment, the Turtle successfully attached a mock bomb to a replica ship hull rigged inside the testing tank.įollowing the Turtle replica’s success at the Naval Academy, it was again taken to the harbor at Duxbury where it was launched into open waters. Manned tests were conducted with the replica taken to a depth of 15 feet during a reenactment of the famous attack on HMS Eagle in 1776. The results of these rigorous tests proved that the Turtle replica was indeed seaworthy. Utilizing the Academy’s hydro-mechanical laboratory, tests were conducted to evaluate water-tightness, while drag tests verified calculations made in the Naval Architecture and Ocean Engineering department. Upon completion in January 2003, the Turtle was successfully water tested in Duxbury, Mass., and soon after the Turtle was tested further at the United States Naval Academy in Annapolis, Md. Borrowing a technique of the Pequot Native Americans, the body of the Turtle was split and hewn from a single log-using only period hand tools. Collaborating with faculty, students, and alumni at the Massachusetts College of Art and the Timber Framers Guild, they used a variety of 18th-century methods, including copper brazing, bronze casting, blacksmithing, and glass blowing. After locating and analyzing original letters and written accounts from the American Revolution, and investigating period technologies and materials, they began reconstructing the Turtle as late 18th-century craftsmen might have. ![]()
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